Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), IPOS, School of Physics,University of Sydney, Sydney, NSW 2006, Australia.
Opt Lett. 2009 Dec 1;34(23):3671-3. doi: 10.1364/OL.34.003671.
We demonstrate a high-Q(approximately 125,000) photonic crystal (PhC) cavity formed using a postprocessing optical exposure technique where the refractive index of a photosensitive chalcogenide PhC is modified locally. The evolution of the cavity resonances was monitored in situ during writing using a tapered fiber evanescent coupling system, and the Q of 125,000 represents 1 order of magnitude increase over previously reported cavities in two-dimensional chalcogenide glass PhC.
我们展示了一种使用后处理光学曝光技术形成的高 Q（约 125,000）光子晶体（PhC）腔，其中光敏硫属化物 PhC 的折射率被局部修改。使用锥形光纤消逝耦合系统在写入过程中实时监测腔共振的演变，125,000 的 Q 值表示与以前在二维硫属化物玻璃 PhC 中报道的腔相比增加了一个数量级。
